Question about 1999 Saturn SL
I'm trying to replace the sensors please help
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Posted on Jan 02, 2017
yes egr valve is a common thing on this saturn. very pricy and yes you need the rear o2 sensor good luck i have a used egr if interested off a sl2
Posted on Sep 29, 2008
hey if you truely think it is your egr valve unhook it and if that is the problem then when it is unhooked it should run better and the codes should not come up. hey if you cahnged the 1 o2 sensor and not the other you probably made the code for the one u repalced come up again. i would recommened that you change both of the o2 sensors at the same time. try checking if your catalatic convert is plugged. how you do this is take a dollar bill and hold it at the end of your tail pipe while it is idleing and if the dollar bill stays still you have a plugged catalatic converter.
Posted on Jan 13, 2009
There is no "cam" sensor. The ignition module detects the timing of the cam based on spark demand from he cylinders. The common fix for this is to remove the ignition module, located under the ignition coils, and clean the mating surface on the transmission with a brillo pad until clean and smooth. Then reinstall the module.
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Posted on Oct 06, 2016
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